Added ability to call methods on entity via presenter

spec/Laracasts/Presenter/PresenterSpec.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace spec\Laracasts\Presenter;
+
+use PhpSpec\ObjectBehavior;
+use Prophecy\Argument;
+
+use Laracasts\Presenter\Presenter;
+
+class PresenterSpec extends ObjectBehavior
+{
+    function let()
+    {
+        $this->beAnInstanceOf('spec\Laracasts\Presenter\ExamplePresenter');
+        $this->beConstructedWith(new ExampleEntity);
+    }
+
+    function it_retrieves_properties_of_its_entity()
+    {
+        $foo = $this->foo->shouldEqual('bar');;
+    }
+
+    function it_calls_methods_of_its_entity_if_the_method_is_not_defined()
+    {
+        $this->baz()->shouldReturn(['foo', 'bar']);
+    }
+
+    function it_calls_methods_of_its_entity_if_the_method_is_not_defined_and_passes_the_arguments()
+    {
+        $this->multiply(1, 2, 3)->shouldReturn(6);
+    }
+}
+
+class ExampleEntity {
+    public $foo = 'bar';
+
+    public function baz()
+    {
+        return ['foo', 'bar'];
+    }
+
+    public function multiply($x, $y, $z)
+    {
+        return $x * $y * $z;
+    }
+}
+
+class ExamplePresenter extends Presenter {
+
+}

src/Laracasts/Presenter/Presenter.php

@@ -31,4 +31,21 @@ public function __get($property)
 		return $this->entity->{$property};
 	}
 
-} 
+	/**
+	 * Allow for method-style retrieval
+	 *
+	 * @param $method
+	 * @param $arguments
+	 * @return mixed
+	 */
+	public function __call($method, $arguments)
+	{
+		if (method_exists($this->entity, $method))
+		{
+			return call_user_func_array([$this->entity, $method], $arguments);
+		}
+
+		throw new \Exception("Method not found on presenter or its entity.");
+	}
+
+}